LM2 replacement announced

[Jrodpic]

https://gmauthority.com/blog/2022/04/2023-chevy-silverado-duramax-diesel-to-get-new-lz0-engine/amp/
 

Interesting

[Dirk13]

The vast majority of it will likely be the same engine. 
 

Looking forward to hearing what they are changing. 

[20SierraL8T24]

If its anything like the 6.6, when they change an RPO code a lot changes. LMM, LML, L5P... Same displacement but that's it. 

[f8l vnm]

I think the magic number is 300/500 ( hoping) 

With Stelantis brining out their 2 Turbo 6 engines, i think GM has to make a decision here on how to move forward. 

They are the only one left now with a V8 as their top dog .  Do the 5.3 and 6.2 get updates or will they phase out one of the motors for a Turbo 6 . Its inevitable IMO.  

[redwngr]

Maybe they'll drop them, but not for 2023 model.

 

Listed for 2023 1500 pickups 

 

L3B    Engine, 2.7L Turbo High-Output, (310 hp [231 kW] @ 5600 rpm, 430 lb-ft of torque [583 Nm] @ 3000 rpm)

L84         Engine, 5.3L EcoTec3 V8, (355 hp [265 kW] @ 5600 rpm, 383 lb-ft of torque [518 Nm] @ 4100 rpm); featuring Dynamic Fuel Management

L87         Engine, 6.2L EcoTec3 V8, (420 hp [313 kW] @ 5600 rpm, 460 lb-ft of torque [624 Nm] @ 4100 rpm); featuring Dynamic Fuel Management

LZ0         Engine, Duramax 3.0L Turbo-Diesel I6

 

All have restrictions regarding trims, transmissions, 2wd/4wd, etc.

LZ0 is the only one that doesn't have hp/tq listed (I guess we gotta be patient)

 

 

New for '23 tabs say:
 

GMC Sierra /Denali 1500

Deletions

     (GAN) Quicksilver Metallic
     (GSK) Cayenne Red Tintcoat
     (Q7L) 22" x 9" (55.9 cm x 22.9 cm) Low Gloss Black Aluminum Wheels with Machined Accents

New Features

     (GXD) Sterling Metallic
     (GNT) Volcanic Red Tintcoat
     (GXN) Deep Bronze Metallic
     (SMR) 22" x 9" (55.9 cm x 22.9 cm) midnight painted aluminum wheel with machining and bright Chrome Inserts

Changes

     (PED) Sierra safety plus package content is now standard on 4SB
     RPO change on (LM2) 3.0L Duramax Turbo-Diesel is now (LZ0) 3.0L Duramax Turbo-Diesel 

 

Chevrolet Truck Silverado 1500

Deletions

     (GAN) Silver Ice Metallic
     (GSK) Cherry Red Tintcoat
     (LM2) 3.0L Duramax Turbo-Diesel I6 engine

New Features

     (GNT) Radiant Red Tintcoat
     (GXD) Sterling Gray Metallic
     (GXN) Harvest Bronze Metallic
     (HF0) Jet Black/Umber Interior available on High Country (3LZ)
     (LZ0) 3.0L Duramax Turbo-Diesel I6 engine
     (VQE) Protection film

 

 

[f8l vnm]

2 hours ago, redwngr said:

Maybe they'll drop them, but not for 2023 model.

 

Listed for 2023 1500 pickups 

 

L3B    Engine, 2.7L Turbo High-Output, (310 hp [231 kW] @ 5600 rpm, 430 lb-ft of torque [583 Nm] @ 3000 rpm)

L84         Engine, 5.3L EcoTec3 V8, (355 hp [265 kW] @ 5600 rpm, 383 lb-ft of torque [518 Nm] @ 4100 rpm); featuring Dynamic Fuel Management

L87         Engine, 6.2L EcoTec3 V8, (420 hp [313 kW] @ 5600 rpm, 460 lb-ft of torque [624 Nm] @ 4100 rpm); featuring Dynamic Fuel Management

LZ0         Engine, Duramax 3.0L Turbo-Diesel I6

 

All have restrictions regarding trims, transmissions, 2wd/4wd, etc.

LZ0 is the only one that doesn't have hp/tq listed (I guess we gotta be patient)

 

 

New for '23 tabs say:
 

GMC Sierra /Denali 1500

Deletions

     (GAN) Quicksilver Metallic
     (GSK) Cayenne Red Tintcoat
     (Q7L) 22" x 9" (55.9 cm x 22.9 cm) Low Gloss Black Aluminum Wheels with Machined Accents

New Features

     (GXD) Sterling Metallic
     (GNT) Volcanic Red Tintcoat
     (GXN) Deep Bronze Metallic
     (SMR) 22" x 9" (55.9 cm x 22.9 cm) midnight painted aluminum wheel with machining and bright Chrome Inserts

Changes

     (PED) Sierra safety plus package content is now standard on 4SB
     RPO change on (LM2) 3.0L Duramax Turbo-Diesel is now (LZ0) 3.0L Duramax Turbo-Diesel 

 

Chevrolet Truck Silverado 1500

Deletions

     (GAN) Silver Ice Metallic
     (GSK) Cherry Red Tintcoat
     (LM2) 3.0L Duramax Turbo-Diesel I6 engine

New Features

     (GNT) Radiant Red Tintcoat
     (GXD) Sterling Gray Metallic
     (GXN) Harvest Bronze Metallic
     (HF0) Jet Black/Umber Interior available on High Country (3LZ)
     (LZ0) 3.0L Duramax Turbo-Diesel I6 engine
     (VQE) Protection film

 

 

Very good info! Thank you .

[jlong1984]

6 hours ago, redwngr said:

Maybe they'll drop them, but not for 2023 model.

 

 

The talk of the town is that new powertrains are coming for '25 (model year '26) when the Silverado/Sierra get their next significant redesign. Lots of people seem to think the 5.3 will be dropped and replaced with a turbocharged V6 of some sort and the 6.2 will probably be the only V8 offered. Obviously, that's just talk at this point. 

[Bamacommander]

I would hope that they would get rid of the oil pump belt that has to be replaced at 150,000 miles by dropping the transmission . That is why I stayed away from this diesel and went with the 6.2. 

[Anon12345]

4 hours ago, Bamacommander said:

I would hope that they would get rid of the oil pump belt that has to be replaced at 150,000 miles by dropping the transmission . That is why I stayed away from this diesel and went with the 6.2. 

 

Is that for 2.8, 3.0, and 6.6 diesels? Or just the 3.0?

[CamGTP]

Just the 3.0.

[BigBadSierra]

There are rumours it's getting cylinder deactivation.

[Jrodpic]

8 hours ago, BigBadSierra said:

There are rumours it's getting cylinder deactivation.

 
Oh boy

[Anon12345]

9 hours ago, BigBadSierra said:

There are rumours it's getting cylinder deactivation.

Got proof?

[Dirk13]

10 hours ago, Anon12345 said:

Got proof?

He doesn’t. They are rumors and not ones that came from GM. Just people talking on the internet. 
 

Im not saying that isnt a possibility, there just isn’t any information out there at all.